Green Car Congress

JUNE 8, 2023

In a recent open-access paper published in ACS’ Environmental Science & Technology , researchers from the University of York report that alcohols in windshield washer fluid account for a larger fraction of real-world vehicle emissions than previous estimates have suggested. Cliff et al. —Cliff et al.

Emissions 397

Emissions Exhaust Cars Ozone 397

Green Car Congress

JULY 18, 2022

The California Air Resources Board (CARB) has released the results of a multiyear study evaluating exhaust emissions from the use of California Reformulated Gasoline (CaRFG) that contains 15 volume percent ethanol (E15). California currently limits the ethanol content of gasoline to 10 percent.

Fuel Economy 186

Fuel Economy Economy Fuel Ozone 186

Green Car Congress

MAY 1, 2018

NO x emissions have not been decreasing as expected in recent years (2011–2015) when comparing top-down estimates from satellites and surface NO 2 measurements to the trends predicted from the US Environmental Protection Agency’s emission inventory data, according to a new study by an international team of researchers.

Emissions 150

Emissions Ozone Pollution EPA 150

Green Car Congress

FEBRUARY 16, 2018

Consumer products such as shampoo, cleaning products and paint now contribute as much to emitted volatile organic compounds (VOCs) in cities as tailpipe emissions from vehicles, according to a new study led by NOAA. Total VOC emission factors for end uses of petrochemical sources in the study. McDonald et al. Click to enlarge.

Pollution 264

Pollution Transportation Production Los Angeles 264

Green Car Congress

JUNE 1, 2017

Traffic contributes more to NO x emissions in Europe than previously thought, according to a new study by a team at the University of Innsbruck. It has been a challenge to determine how much each polluter contributes to the emission output. The majority of the emissions is caused by diesel cars. —Thomas Karl.

Europe 150

Europe Diesel Emissions Pollution 150

Green Car Congress

MAY 12, 2017

A new study quantifying emissions from a fleet of gasoline direct injection (GDI) engines and port fuel injection (PFI) engines finds that the measured decrease in CO 2 emissions from GDIs is much greater than the potential climate forcing associated with higher black carbon emissions from GDI engines.

Fleet 207

Fleet Engine Global Fuel Economy 207